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这是一个IO口模拟串口，采用51汇编代码编写的程序-This is a simulation of serial IO port, using a program written in assembly code 51

本程序用于简单的成绩管理,如多学生成绩的输入,,查找,插入,和排序,并能保存并调出以输入的文件进行处理等。-This procedure for the simple performance management, student achievement such as multi-input,, to find, insert, and sequencing, and can save and transfer a file to input processing.

单片机LCD程序，用汇编语言写的，里面有详细的源代码和电路图-Single-chip LCD procedures, using assembly language to write, and there are detailed source code and circuit diagram

This zip files contains twelve practices in assembler and C with the project files to work with the MPLAB IDE environment.

用8155扩展51单片键盘控制-8155 with 51 single extended keyboard control

sql server工具sql server工具-sql server tools sql server tools

十六位按键功能的读写程序，包括汇编原代码，可烧录文件，熟悉按键检测功能的使用方法-16 button functions to read and write procedures, including the compilation of the original code, recordable documents, familiar with the use of key detection method

汉诺塔设计，希望对大家有用，请大家多多指教。-Hanoi Tower design, we hope to useful, please exhibitions.

广告牌的制做，可以显示32高字可以任意加，-Advertising system to do, you can display 32 characters can be high-Canada,

U盘原代码,包括FAT16和USB的所有东东都是开放的,请认真看呀.-U disk source code, including FAT16 and USB all Dongdong are open, please carefully looked.